CVE-2026-0711

Administrator-level command execution via EasyMesh APIs

Published Apr 28, 2026 · Updated Apr 29, 2026

OS command injection in Zyxel DX3300-T0 firmware 5.50(ABVY.7.1)C0 and earlier allows attackers to execute OS commands. The EasyMesh-related APIs fail to neutralize attacker-controlled input before executing an OS command, but Zyxel has not disclosed the affected endpoints. Exploitation requires administrator credentials and adjacent network access; WAN access is disabled by default, and a user-configured password must be compromised.

CVSS severity6.8
Medium
EPSS probability0.85%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Zyxel DX3300-T0 firmware 5.50(ABVY.7.1)C0 and earlier allows attackers to execute OS commands. The EasyMesh-related APIs fail to neutralize attacker-controlled input before executing an OS command, but Zyxel has not disclosed the affected endpoints. Exploitation requires administrator credentials and adjacent network access; WAN access is disabled by default, and a user-configured password must be compromised.

The record

CVE
CVE-2026-0711
Published
Apr 28, 2026
Updated
Apr 29, 2026
Vendor
Zyxel Networks
Product
DX3300-T0 Firmware
Classifications
CWE-78, T1059
Attack vector
adjacent
Privileges
admin

Timeline

How it unfolded

  1. Apr 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 29, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=<= 5.50(ABVY.7.1)C0

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesadmin

What is affected?

Zyxel Networks · DX3300-T0 Firmwareversion=<= 5.50(ABVY.7.1)C0

Published CVSS scores

6.8ZyxelCVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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